diff --git a/.zuul.yaml b/.zuul.yaml
index dd33cc5..def642a 100644
--- a/.zuul.yaml
+++ b/.zuul.yaml
@@ -29,7 +29,9 @@
       - openstack/python-zaqarclient
       - openstack/python-zunclient
       - openstack/requirements
-    branches: ^(?!stable)
+    branches:
+      regex: ^stable/.*$
+      negate: true
 
 - project-template:
     name: openstackclient-plugin-jobs